Home / 5,921.84-8,172.16-3,683.72

Finding the Fourth Proportional to 5,921.84, 8,172.16 and 3,683.72

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Solution

The fourth proportional to 5,921.84, 8,172.16 and 3,683.72 is: 5,083.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,921.84 : 8,172.16 = 3,683.72 : x
  2. Step 2: Convert to fraction form
    5,921.84/8,172.16 = 3,683.72/x
  3. Step 3: Cross multiply
    5,921.84x = 8,172.16 × 3,683.72
  4. Step 4: Simplify right side
    5,921.84x = 30,103,949.24
  5. Step 5: Solve for x
    x = 30,103,949.24/5,921.84
  6. Step 6: Final answer
    x = 5,083.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.